CONCRETO PERMEÁVEL COM AGREGADO DA RECICLAGEM DE RESÍDUOS DA CONSTRUÇÃO E DEMOLIÇÃO: REVISÃO BIBLIOGRÁFICA / PERMEABLE CONCRETE WITH AGGREGATE FROM CONSTRUCTION AND DEMOLITION WASTE RECYCLING: LITERATURE REVIEW

Construction and demolition waste (CDW) management in developing countries is a global concern. The analysis of scenarios and the implementation of life cycle assessment (LCA) support decision-makers in introducing integrated CDW management systems. This paper introduces the application of an LCA in La Paz (Bolivia), where CDW is mainly dumped in open areas. The aim of the research is to evaluate the benefits of inert CDW recycling in function of the selective collection rate, defined as the amount of waste (%wt.) sorted at the source in relation to the total waste amount produced, and the distances from the CDW generation to the material recycling facility. The outcomes of the research suggest that increasing the selective collection rates (5% to 99%) spread the importance of transportation distances planning since it affects the magnitude of the environmental impacts (1.05 tCO2-eq to 20.7 tCO2-eq per km traveled). Transportation limits have been found to be lower than about 40 km in order to make recycling beneficial for all environmental impacts and for all selective collection rate, with the eutrophication potential as the limiting indicator. The theoretical analysis suggests implementing LCA with primary data and involving statistics related to the transportation of virgin materials avoided thanks to recycling. The outcomes of the research support the implementation of CDW recycling in developing countries since it has been found that material recovery is always beneficial.

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A model for assessing the economic viability of construction and demolition waste recycling—the case of Ireland

Resources Conservation and Recycling ◽

10.1016/j.resconrec.2005.08.003 ◽

2006 ◽

Vol 46 (3) ◽

pp. 302-320 ◽

Cited By ~ 103

Author(s):

Xavier Duran ◽

Helena Lenihan ◽

Bernadette O’Regan

Keyword(s):

Waste Recycling ◽

Construction And Demolition Waste ◽

Economic Viability ◽

Demolition Waste

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The State of the Art of Material Flow Analysis Research Based on Construction and Demolition Waste Recycling and Disposal

Buildings ◽

10.3390/buildings9100207 ◽

2019 ◽

Vol 9 (10) ◽

pp. 207 ◽

Cited By ~ 2

Author(s):

Dongming Guo ◽

Lizhen Huang

Keyword(s):

Material Flow ◽

State Of The Art ◽

Flow Analysis ◽

Material Flow Analysis ◽

Waste Recycling ◽

Construction And Demolition Waste ◽

Waste Processing ◽

City Development ◽

Demolition Waste ◽

Sustainable City

Construction and demolition waste (C&D waste) are widely recognized as the main form municipal solid waste, and its recycling and reuse are an important issue in sustainable city development. Material flow analysis (MFA) can quantify materials flows and stocks, and is a useful tool for the analysis of construction and demolition waste management. In recent years, material flow analysis has been continually researched in construction and demolition waste processing considering both single waste material and mixed wastes, and at regional, national, and global scales. Moreover, material flow analysis has had some new research extensions and new combined methods that provide dynamic, robust, and multifaceted assessments of construction and demolition waste. In this paper, we summarize and discuss the state of the art of material flow analysis research in the context of construction and demolition waste recycling and disposal. Furthermore, we also identify the current research gaps and future research directions that are expected to promote the development of MFA for construction and demolition waste processing in the field of sustainable city development.

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Circular Economy on Construction and Demolition Waste: A Literature Review on Material Recovery and Production

Materials ◽

10.3390/ma13132970 ◽

2020 ◽

Vol 13 (13) ◽

pp. 2970 ◽

Cited By ~ 2

Author(s):

Clarence P. Ginga ◽

Jason Maximino C. Ongpeng ◽

Ma. Klarissa M. Daly

Keyword(s):

Literature Review ◽

Circular Economy ◽

Business Models ◽

Latent Dirichlet Allocation ◽

Traditional Approach ◽

Construction And Demolition Waste ◽

The European Union ◽

Demolition Waste ◽

Material Recovery ◽

New Construction

Construction and demolition waste (CDW) accounts for at least 30% of the total solid waste produced around the world. At around 924 million tons in the European Union in 2016 and 2.36 billion tons in China in 2018, the amount is expected to increase over the next few years. Dumping these wastes in sanitary landfills has always been the traditional approach to waste management but this will not be feasible in the years to come. To significantly reduce or eliminate the amount of CDW being dumped, circular economy is a possible solution to the increasing amounts of CDW. Circular economy is an economic system based on business models which replaces the end-of-life concept with reducing, reusing, recycling, and recovering materials. This paper discusses circular economy (CE) frameworks—specifically material recovery and production highlighting the reuse and recycling of CDW and reprocessing into new construction applications. Likewise, a literature review into recent studies of reuse and recycling of CDW and its feasibility is also discussed to possibly prove the effectivity of CE in reducing CDW. Findings such as effectivity of recycling CDW into new construction applications and its limitations in effective usage are discussed and research gaps such as reuse of construction materials are also undertaken. CE and recycling were also found to be emerging topics. Observed trends in published articles as well as the use of latent Dirichlet allocation in creating topic models have shown a rising awareness and increasing research in CE which focuses on recycling and reusing CDW.

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A Brief Analysis of Domestic Construction and Demolition Waste Recycling Techniques

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.509.1 ◽

2012 ◽

Vol 509 ◽

pp. 1-5

Author(s):

Su Ping Cui ◽

Qi Dong Liu ◽

Jian Hua Yan ◽

Xin Du

Keyword(s):

Natural Disaster ◽

Waste Recycling ◽

Recycled Concrete ◽

Construction And Demolition Waste ◽

Recycled Aggregate ◽

Demolition Waste ◽

Construction Waste ◽

Healthy Development ◽

Industrial Chain ◽

Recycling Techniques

In this paper, the construction and demolition waste (C&D waste) recycling techniques in China is summarized, and proposed the C&D waste recycling suggestions in this foundation. The C&D waste can be divided into construction waste, decorating waste, demolition waste and natural disaster ruin waste. In addition to be buried, domestic C&D waste can be made into landscape material, roadbed material, recycled aggregate, recycled brick, recycled concrete, recycled admixture and so on. The state should establish positive promoting policies, improve the recycling industrial chain, and promote the healthy development of the C&D waste recycling.

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Environmental analysis of a construction and demolition waste recycling plant in Portugal – Part II: Environmental sensitivity analysis

Waste Management ◽

10.1016/j.wasman.2012.09.004 ◽

2013 ◽

Vol 33 (1) ◽

pp. 147-161 ◽

Cited By ~ 32

Author(s):

André Coelho ◽

Jorge de Brito

Keyword(s):

Sensitivity Analysis ◽

Environmental Analysis ◽

Waste Recycling ◽

Construction And Demolition Waste ◽

Environmental Sensitivity ◽

Demolition Waste

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Quality Improvement of Recycled Aggregates from a Construction and Demolition Waste Recycling Pilot Plant

Materials Science Forum ◽

10.4028/www.scientific.net/msf.730-732.630 ◽

2012 ◽

Vol 730-732 ◽

pp. 630-635

Author(s):

D. Algarvio ◽

Maria Margarida Rolim Augusto Lima ◽

M.L. Cunha

Keyword(s):

Quality Improvement ◽

Magnetic Separation ◽

Pilot Plant ◽

Waste Recycling ◽

Separation Process ◽

Construction And Demolition Waste ◽

Recycled Aggregates ◽

Demolition Waste ◽

Size Fractions ◽

Cumulative Curves

The construction and demolition wastes (C&DW) frequently are abandoned in private properties, roads, and landfills or collected by non-licensed companies. In Portugal they are few recycling plants operating with this residue, and this work makes the bridge between the mechanical recycling process developed on semi-industrial scale, and the recycling products characterization process developed on laboratorial scale. The main goal of the present work is the quality improvement of the recycled aggregates produced by a construction and demolition waste recycling pilot plant with 50 ton/h located in Montemor-o-Novo. Process operations are the hammer mill comminution, magnetic separation and sieving (bar sieves: 0-4mm, 4-8mm and 8-12mm; and square sieves: 12-22mm, 22-31mm and above 31mm). In order to improve the magnetic separation process, several tests with different distances between the magnet and the conveyor belt were made (21-31cm). On the other hand, to improve the quality of the produced aggregates, the bar screen size fractions were analyzed, according to the Portuguese Standard (NP EN 933-1 2000). The most efficient distances for the magnetic separation process were identified as between 21 and 27cm, with efficiency between 85% and 90% respectively. According to the histograms, the more frequent red aggregate from 0-4mm size fraction are +0.425-0.850; +0.850-1.7 and +1.7-3.35. From the 4-8mm red aggregates, the more frequent size fractions are +4.75-6.7 and +6.7-9.95. Finally, from the 8-12mm red aggregates, the more frequent new size fractions are +6.7-9.50 and +9.50-13.20. Sieving results obtained from cumulative curves for red aggregate showed an decrease in the mass % amount for the size fractions: 0-4mm: 97%, 4-8mm:76% and 8-12mm: 56%. The results from cumulative curves for grey aggregate showed a light decreased in the amount mass % for the size fractions: 0-4mm: 90%, 4-8mm:56% and 8-12mm: 60%.

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